We also need to testrun a permanent 1MB cap altcoin. We haven't got one of those yet.
which is false
Sorry I was unaware of one. Can you post a link to this altcoin?
Could ixcoin or i0coin be of any help? These are copies of bitcoin that have been running for a few years now. And seeing as how they are copies of bitcoin they should have a 1 MB cap. Maybe someone can build something like satoshi dice to stress test one of those networks!